Oil burner



A. BEHRSIN Nov.8, 1932.

OIL BURNER Filed Jan. 14, 1931 Patented Nov. 8, 1932 I 1,ss7,00.7

I AUGUSTBE'HRSIN, OFgHUNTINGTON PARK; CALIFORNIA OIL BURNER Application filed January-14, 1931. Serial No. 508,600.

This invention relates toan oil burner and particularly pertains to oil burners of the flatfiame steam atomizing type.

An object of the invention is toprovide 5 an oil burner of the above character embodying an oil discharge orifice and a steamdis- @charge orificearranged subjacent the oil discharge orifice whereby streams of oil and steam may be coincidently discharged from theburner in such manner that the steam will act to. effect atomization of the oil exteriorly of the burner; a particular object being to provide a constructionin the burner whereby jets of steam will be ejected with the oil through the oil discharge-orifice in such manner as to eifectcontinuous cleaning of theoil discharge orifice and thereby prevent clogging of the oildischargeorifice by accumulations of carbon thereon. I

With the foregoing objects in viewtogether with such other objects and advantages as may subsequently appearthe invention resides in, the parts and inthe combinar -tion,. construction and arrangement of parts "hereinafter described and claimed and illustrated by way of example in the accompanyiiig drawingyin which:

I Figurel is a perspective view of the burner head 'as seen from front and to one side 30 thereof; p

Figure 2 1s a View of the burner head asseen in vertical-section;

- Figure?) is: arr-inverted plan view'and section taken on; the line 33 of Figure 2 show- 0 ing the oilchamber portion of the burner head;

Figure 4 is a plan view and section taken on the line 4- of Figure 2 showing the steam chamber portion of the burner head; 7

Figure 5 is a perspective view of a septum adapted to be interposed between the oil and steam. chamber containing members of the burner asseen from the upper side thereof Figure 6 is a perspective view of the septum as seen from the lower side thereof;

Figure 7 is aperspective view illustrating .a modified formof the septum.

Referring to the drawing more specifically, A indicates generally the burnerhead which comprises an oil distributing member B,' a'

formed in an end Wall thereof with'an annuface of the septum is formed with a recess f leading inwardly from .a portion of its pesteam distributing member C, a septum D adapted to beinterposed between the members B and'C,,and an assembler'member E by which the members B and C with the septum D therebetween are detachably connected together. I

The oil distributingmember B is provided with an annular chamber 12 which is formed around a central boss 13'; the outer margin of which boss and the margin of the chamber 12 extend on a common plane. The member B is formed with an internally threaded nipple l f adapted to be screwed onto an oilfeed pipe 15 and the passage 16 of which nipple leads to the chamber 12 at one side thereof. The chamber 12 is formed with an end wall 17 which extends onan incline from the margin of the passage 16 at its. point of intersection with the chamber 12 and leads to the margin of the chamber 12 at. a point diametrically opposite the passage 16.

The steamdistributing element C is. formed with an annular chamber 18 and has an internally threaded nipple 19.-adapted-tobe screwed onto a steam supply pipe 20; the passage 21 of which nipple leads to the chamber 18 through the sidewall thereof. The chamber '18 is formed internallyof the member C and communicates through a series of'openings 22 v lar channel 23 surrounding a boss 24; the outer end of whichboss and the outer margin of which channel extend on a common plane. The septum D comprises a disk which may be formed inone piece as shown in Figure 7, ormay bebuilt up ofthree pieces a, b and'o connected together by a pair of bolts d and e as shownin Figures 2, 5 and 6. The septum is designed to be interposed between the members B and C with its upperfaceseating 0 on the margin of the chamber 12 and on the end of theboss 13 in closecontact therewith, andwith its lower face seating on the margin of the channel 23 and the upper end of the boss 24 in close contact therewith, in such" manner as to separate the chamber '12 from the channel 23'. t

In carrying out the invention the upper the inner margin of the recess.

the septum and intersect an arcuate wall constituting the inner margin of the recess 7. The underside of the septum is formed with a recess extending inwardly from a portion of the periphery of the disk and extends opposite the recess f, but is preferably of greater length than the latter. T he end walls 7: and Z of the recess extend radially of the disk and intersect an arcuate wall m which constitutes On assembling the septum between the members B and C the recesses f and j will form at the outer portions thereof oil and s am outlet orifices and 26 between the bcttonrwalls of the recesses f anc j and the contiguous faces of the members B and G, as particularly shown inFigure 2. V

The assembly element E comprises a bolt including ahead 21? and ashanl: 28, and v 1 i Q which shank is passed througn bore 2 1n the member B and through a circular opening in the septum D and is screwed into engagement with a bore 31 formed in the member C centrally of the'boss 2st, in such manner 7 that the threaded connection between the bolt and the member C will cooperate with the head of the bolt to tightly clamp the members B and C against opposite sides of the septum D.

An important feature of the present inventilon resides in providing a means for direct-- ing steam from the chamber 13 outwardly over the upper face of the septum Dthrough the channel f and oil discharge orifice 25 which is here shown as accomplished by forming the threaded end portion of the bolt with a longitudinally extending passage 32 which communicates at the lower end of the bolt with thebore 31 and from the inner end of which passage leads ducts. 33 communicating with an annular channel 34 formed in the outer periphery of the bolt at the base ofits threaded portion and which passage is'arranged to communicate with a series of radipoint below the lower end of the bolt.

Where the septum D is formed in assem bling pieces z, b and c the passages are provided by forming grooves on the under side of the plate a. and where theseptum is formed in one piece as shown in Figure 7 the passages 35' are formed by drilling holes through the wall 2'.

The septum D is adapted to be disposed in various positions around the bolt so as to dispose the burner orifices 25 and 26 at various positions around the burnerfa pin 38 formed on the member 13 projecting into'an arcuate slot 39 on the upper face 01" the sep- Il.,887,00'l

tum D to serve as a means for limiting the extent of turning of the septum relatively to the member B.

In the operation of the invention oil under pressure is directed to the burner head through the feed pipe 15; the oil flowing from the feed pipe 15 into the chamber 12 and over the septum D into the recess f on the latter and thence discharging in a fan-like stream through the oil discharge orifice 25. Steam is directed under pressure through the pipe 20 to the chamber 13 in the burner head from whence a portion of the steam will pass upwardly through the openings 22 into the channel 23 beneath the septum D and into the recess on the under side of the latter and thence through the steam outlet orifice 26 in a fan-shaped stream. The streams of oil and steam emitted from the burner willineet by reason of their close proximity and the tendency of the oil stream to gravitate into the stream of steam whereby atomization of the oil will be effected.

Steam entering th chamber 13 will be dir'ected through 516 passage 36 into the bore and upw idly through the passage 32 and outwardly through the ias'sages 33 into the channel 3% from whence it will be directed in the form of jets through the passages 35 and which jets will be directed into the oil stream discharging through the orifice 5 in he direction of such stream. The jets of steam emitted through the passages 35 serve to boost the oil in its discharge through the orii'ice and at the same time acts to assist in the atomization of the oil and also serves to prevent the accumulations of carbon in the discharge orifice 25 and whereby clogging of the burner outlet is largely prevented there by minimizing the necessity for cleaning the burner.

By providin the annular chamber 12 with the inclined top wall 17 leading downwardly from the upper margin of the oil intake pasge 16 to the oil discharge orifice 25, the upper portion of the incoming oil stream will be deflected. directly to the orifice which with the provision of the annular side wall of the chamber serves to minimize pocketing of oil in the chamber and the resultant formation of carbon deposits therein.

I claim:

1. In an oil. burner, a burner head having an oil chamber and a steam chamber and formed with an oil discharge orifice leading from said oil chamber and a steam discharge an oil chamber and a steam chamber, a septum between said chambers, said burner head having oil and steam discharge orifices leading respectively from above and below said septum and having passages leading from said steam chamber and communicating with said oil chamber and arranged to direct steam from said oil chamber through said oil discharge orifice from rearward of the inner margin thereof.

3. In an oil burner, a burner head comprising a pair of separable members one of which is formed with an oil chamber and the other of which is formed with a steam chamber, a septum interposed between said members separating said chambers, said septum being formed with recesses on its opposite sides leading inwardly from the margin thereof to form the burner head with oil and steam discharge outlets; the uppermost of said recesses communicating with said oil chamber and the lowermost of said recesses communicating with said steam chamber, a bolt connecting said members together on opposite sides of said septum, and a communication leading fromsaid steam chamber through said bolt and opening to said oil chamber.

4. In an oil burner, a burner head including a pair of separable members,,a septuminterposed between said members, a bolt interconnecting said members and septum, one of said members being formed with an oil chamber and the other of: said members being formed with a steam chamber, said burner head being provided with oil and steam discharge orifices leading fromsaid chambers, said septum being formed with a series of steam discharge passages opening to said oil chamber toward the oil discharge orifice in inwardly spaced relation to the inner margin thereof, and a communication between said steam chamber and said passages.

5. In an oil burner having a burner head formed with a pair of separable members one of which is formed withan oil chamber and the other of which. is formed with a steam chamber, a septum interposed between said members separating said chambers and formed to provide separate oil and steam outlets leading from said chambers, and a bolt connecting said members together through said septum; said bolt being formed with a communication leading from said steam chamber and opening to the side of the bolt intermediate the opposite sides of said septum, and said septum being formed with openings leading from said communication arranged to direct steam across the upper face of said septum and through said oil outlet.

6. In an oil burner having a burner head formed with a pair of separable members one of which is formed with an oil chamber and the other of which is formed with a steam chamber, a septum interposed between said members separating said chambers and formed to provide separate oil and steam outlets leading from said chambers, and a bolt connecting said members together through said septum; said bolt being formed with a continuous peripherial channel arranged between the opposed faces of said septum, and a communication leading from said steam chamber to said channel; said septum being formed with steam outlets leading from said channel and opening towards said oil outlet.

7. In an oil burner, a burner head including a pair of members, a septum interposed between said members, and a bolt connecting said members together through said septum; one of said members being formed with an oil chamber, the other of said members being formed with a steam chamber, said septum being formed with recesses on opposite sides thereof one of which opens to said steam chamber and the other of which opens to said oil chamber; said recesses opening to the exterior of the burner head to form discharge orifices in the latter, said bolt being formed with a communication leading from said steam chamber and opening to the side of said bolt intermediate the opposite sides of said septum, and said septum being formed with openings in the marginal wall of the recess opening to the oil chambers leadingfrom said communication for directing steam across the bottom of said recess and through said oil outlet.

AUGUST BEHRSIN. 

